1  Error Message like this:    

[exec] [INFO] Scanning for projects...
     [exec] [INFO]
     [exec] [INFO] ------------------< org.apache.maven:standalone-pom >-------------------
     [exec] [INFO] Building Maven Stub Project (No POM) 1
     [exec] [INFO] --------------------------------[ pom ]---------------------------------
     [exec] [INFO] ------------------------------------------------------------------------
     [exec] [INFO] BUILD FAILURE
     [exec] [INFO] ------------------------------------------------------------------------
     [exec] [INFO] Total time:  0.163 s
     [exec] [INFO] Finished at: 2023-03-08T09:40:52+08:00
     [exec] [INFO] ------------------------------------------------------------------------
     [exec] [ERROR] NullPointerException
     [exec] [ERROR]
     [exec] [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
     [exec] [ERROR] Re-run Maven using the -X switch to enable full debug logging.
     [exec] Result: 1